Structures and photocatalytic performance of two d10 metal-based coordination polymers containing mixed building units

Anion-induced structural diversity in cadmium coordination polymers of 4-aminobenzonitrile: a structural and DFT study

“…Such a strong 3D network leads to a very dispersive band along the different crystallographic axes. Previous study 83 revealed that d 10 cations ( e.g. , Zn, Cd) do not contribute much to the band edges, where non-metals elements pervade.…”

“…Such a strong 3D network leads to a very dispersive band along the different crystallographic axes. Previous study 83 revealed that d 10 cations (e.g., Zn, Cd) do not contribute much to the band edges, where non-metals elements pervade. However, the presence of metals in the structure disperses the band structure, the feature that is not missing in pure organic crystals.…”

Preparation and Spectroscopic Studies of Cadmium(II), Zinc(II),Mercury(II) and Vanadium(IV) Chelates Azo Ligand Derived from 4-Methyl-7-hydroxycoumarin

“…The azo ligand showed one strong absorption around 379 nm which was assigned to intra-ligand charge transfer of -N=N-moiety, then confirms the formation of azo dye due to the high intensity band located near the visible region. On comparison the UV-Visible spectra of all complexes with the spectrum of the free ligand in DMSO solvent, it is noted that the new weak bands observed at around (490-380) nm are consistent with the chelation of empty orbitals of Hg(II), Zn(II), Cd(II) and V(IV) ions [18][19] with the lone pairs of the donating atoms in the active sites of azo dye. The intraligand charge transfer of -N=N-moiety was shifted to longer or shorter wavelengths due to the linkage of lone 2.…”

“…The red solution of vanadium (IV) complex displayed two spin-allowed peaks at 650 and 490 nm that are attributed to 2 A 1 g→ 2 B 1 g and 2 A 1 g→ 2 B 2 g transitions respectively [20]. The value of magnetic moment of solid complex of vanadium(II) at 27 °C to 1.80 BM revealed the presence of unpaired electron in its outer level 3d 1 and make it forms the possibility of five-coordinate complex with a bi dentate azo-dye ligand through two active site -N=N and -OH groups [18][19].…”